Product Overview
The EARTHQUAKE 21884 String Mower Replacement Line is designed for efficient and durable cutting with compatible walk-behind string mowers. This package contains 24 pre-cut lines, each made from high-density nylon for extended operational life.
These replacement lines are specifically compatible with EARTHQUAKE walk-behind string mower models 37676 and 28463.
Image: A package containing 24 black string mower replacement lines, ready for use.
Setup and Installation
Proper installation of the replacement lines is crucial for optimal performance and safety. Always ensure your string mower is turned off and the spark plug wire is disconnected before performing any maintenance or installation procedures.
- Prepare the Mower: Ensure the string mower is on a flat, stable surface. Turn off the engine and disconnect the spark plug wire to prevent accidental starting.
- Remove Old Lines (if applicable): If there are any remaining worn or broken lines, carefully remove them from the cutting head's connection points.
- Insert New Lines: Take one replacement line. Locate the designated connection points or slots on the cutting head of your string mower. Thread one end of the replacement line through the connection point until the line is centered, with equal lengths extending from both sides.
- Secure Lines: Ensure the lines are securely seated in their connection points. Some cutting heads may require a specific knot or locking mechanism; refer to your string mower's specific manual for detailed instructions on securing the lines.
- Repeat: Repeat the process for all necessary line connection points on the cutting head.
Image: A close-up view of a string mower's cutting head, demonstrating how a replacement line is threaded and installed. Note: Line color may vary from product image.
Image: A person demonstrating the installation of a replacement line on an EARTHQUAKE walk-behind string mower. Note: Line color may vary from product image.
Operating Considerations
While these lines are a component, their performance is directly related to the operation of your string mower. The high-density nylon construction of EARTHQUAKE replacement lines is designed for durability and longer run times, reducing the frequency of replacements during operation.
- Optimal Cutting: For best results, operate your string mower at the recommended engine speed.
- Avoid Obstacles: While durable, direct impact with hard surfaces like concrete, rocks, or metal fences will accelerate wear and breakage.
- Line Length: The pre-cut 21.25-inch length is optimized for compatible EARTHQUAKE string mowers. Do not attempt to modify the length as it may affect balance and cutting efficiency.
Maintenance
Regular inspection and timely replacement of string mower lines ensure consistent cutting performance and safety.
- Inspect Before Each Use: Before starting your string mower, visually inspect the lines for signs of wear, fraying, or breakage.
- Replace Worn Lines: Replace lines as soon as they show significant wear or break. Operating with uneven or excessively short lines can reduce cutting efficiency and potentially strain the mower.
- Storage: Store unused replacement lines in a cool, dry place away from direct sunlight to maintain their material integrity.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Lines break frequently. |
|
|
| Poor cutting performance. |
|
|
Specifications
- Part Number: 21884
- Quantity: 24 Replacement String Mower Lines
- Length: 21.25 inches (21 ¼ inches)
- Diameter: 0.155 inches
- Material: High-density nylon
- Compatible Models: EARTHQUAKE 37676, 28463 walk-behind string mowers
- Product Dimensions: 22 x 1 x 1 inches
- Item Weight: 8 ounces
Support Information
EARTHQUAKE is committed to providing effective and innovative outdoor power equipment. For assistance, questions, or support regarding your EARTHQUAKE products, including these replacement lines, please contact our U.S.-based support team.
While specific contact details are not provided in this manual, general support information can typically be found on the official EARTHQUAKE website or through your product's original documentation.
Note: This product is a replacement part and does not typically come with a separate warranty beyond the original equipment's warranty or standard consumer rights.
